List of National Natural Landmarks in Connecticut
Encyclopedia
From List of National Natural Landmarks, these are the eight National Natural Landmark
National Natural Landmark
The National Natural Landmark program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. It is the only natural areas program of national scope that identifies and recognizes the best examples of biological and geological features in...

s in Connecticut
Connecticut
Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...

. They represent the geological and ecological history of Connecticut, including glacial features such as bogs, old growth forests and swamps. There are also well preserved dinosaur tracks,
Name Image Date Location County Description
1 Bartholomew's Cobble
Bartholomew's Cobble
Bartholomew's Cobble is a National Natural Landmark, open space preserve, agricultural preserve, and bio-reserve located in southwest Massachusetts in the village of Ashley Falls abutting Canaan, Connecticut...

Canaan
Canaan, Connecticut
Canaan is a town in Litchfield County, Connecticut, United States. The population was 1,081 at the 2000 census. The town of Canaan is often referred to locally by the name of its principal constituent village, Falls Village.-Geography:...

 42.057222°N 73.350833°W
Litchfield
Litchfield County, Connecticut
Litchfield County is a county located in the northwestern corner of the U.S. state of Connecticut. Litchfield County has the lowest population density of any county in Connecticut but is geographically the state's largest county. As of 2010 the population was 189,927...

Open space preserve, agricultural preserve, and bio-reserve located in Ashley Falls, Massachusetts and Canaan, Connecticut
Canaan, Connecticut
Canaan is a town in Litchfield County, Connecticut, United States. The population was 1,081 at the 2000 census. The town of Canaan is often referred to locally by the name of its principal constituent village, Falls Village.-Geography:...

. The preserve contains over 800 plant species including North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

's greatest diversity of fern
Fern
A fern is any one of a group of about 12,000 species of plants belonging to the botanical group known as Pteridophyta. Unlike mosses, they have xylem and phloem . They have stems, leaves, and roots like other vascular plants...

s. It is open to the public with hiking trails and a visitors center.
2 Beckley Bog
Beckley Bog
Beckley Bog is a sphagnum-heath-black spruce bog located near Norfolk in Litchfield County, Connecticut. It is the southernmost sphagnum bog in New England. The peat moss is over 51 feet deep. It was declared a National Natural Landmark in May 1977....

Norfolk
Norfolk, Connecticut
Norfolk is a town in Litchfield County, Connecticut, United States. The population was 1,660 at the 2000 census.Norfolk is perhaps best known as the site of the Yale Summer School of Music – Norfolk Chamber Music Festival, which hosts an annual chamber music concert series in "the Music Shed," a...

 41.96889°N 73.16222°W
Litchfield
Litchfield County, Connecticut
Litchfield County is a county located in the northwestern corner of the U.S. state of Connecticut. Litchfield County has the lowest population density of any county in Connecticut but is geographically the state's largest county. As of 2010 the population was 189,927...

The southenmost Sphagnum
Sphagnum
Sphagnum is a genus of between 151 and 350 species of mosses commonly called peat moss, due to its prevalence in peat bogs and mires. A distinction is made between sphagnum moss, the live moss growing on top of a peat bog on one hand, and sphagnum peat moss or sphagnum peat on the other, the...

-heath-black spruce
Black Spruce
Picea mariana is a species of spruce native to northern North America, from Newfoundland west to Alaska, and south to northern New York, Minnesota and central British Columbia...

 bog
Bog
A bog, quagmire or mire is a wetland that accumulates acidic peat, a deposit of dead plant material—often mosses or, in Arctic climates, lichens....

 in New England. Purchased by the Nature Conservancy in 1956.
3 Bingham Pond Bog
Bingham Pond Bog
Bingham Pond Bog is a rare undisturbed cold northern black spruce bog, highly unusual in that it lacks the usual sphagnum moss associated with bogs. It is located near Salisbury, Connecticut, United States. It was designated a National Natural Landmark in May 1973The Crimson-ringed Whiteface ...

Salisbury
Salisbury, Connecticut
Salisbury is a town in Litchfield County, Connecticut, United States. The town is the northwest-most in the State of Connecticut. The MA-NY-CT Tri-State Marker is located just on the border of Salisbury...

 42.02028°N 73.46639°W
Litchfield
Litchfield County, Connecticut
Litchfield County is a county located in the northwestern corner of the U.S. state of Connecticut. Litchfield County has the lowest population density of any county in Connecticut but is geographically the state's largest county. As of 2010 the population was 189,927...

A rare undisturbed northern black spruce
Black Spruce
Picea mariana is a species of spruce native to northern North America, from Newfoundland west to Alaska, and south to northern New York, Minnesota and central British Columbia...

 bog, which is missing the more common Sphagnum moss.
4 Cathedral Pines
Cathedral Pines
Cathedral Pines is a nature preserve owned and managed by The Nature Conservancy in Cornwall, Connecticut. It is an old-growth white pine and hemlock forest which had been donated in 1967 by the Calhoun family who had purchased it in 1883 to prevent logging...

Cornwall
Cornwall, Connecticut
Cornwall is a town in Litchfield County, Connecticut, United States. The population was 1,434 at the 2000 census.In 1939 poet Mark Van Doren wrote "The Hills of Little Cornwall", a short poem in which the beauties of the countryside were portrayed as seductive:The town was also home to the Foreign...

 41.836044°N 73.325163°W
Litchfield
Litchfield County, Connecticut
Litchfield County is a county located in the northwestern corner of the U.S. state of Connecticut. Litchfield County has the lowest population density of any county in Connecticut but is geographically the state's largest county. As of 2010 the population was 189,927...

A large tract of old-growth white pine
Eastern White Pine
Pinus strobus, commonly known as the eastern white pine, is a large pine native to eastern North America, occurring from Newfoundland west to Minnesota and southeastern Manitoba, and south along the Appalachian Mountains to the northern edge of Georgia.It is occasionally known as simply white pine,...

 and hemlock
Tsuga
Tsuga is a genus of conifers in the family Pinaceae. The common name hemlock is derived from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock....

 forest owned by the Nature Conservancy which was mostly destroyed by tornadoes in 1989.
5 Chester Cedar Swamp Chester
Chester, Connecticut
Chester is a town in Middlesex County, Connecticut, United States. The population was 3,743 at the 2000 census. The town center is also defined by the U.S. Census Bureau as a census-designated place .-Geography:...

 41.387499°N 72.488995°W
Middlesex
Middlesex County, Connecticut
Middlesex County is a county located in the south central part of the U.S. state of Connecticut. It was created in 1785 from portions of Hartford and New London counties. As of 2010, the population was 165,676....

Known for its Atlantic white cedar swamp within the Cockaponset State Forest
Cockaponset State Forest
Cockaponset State Forest is the second largest forest in the Connecticut state forest system, encompassing over 16,000 acres of land. Most of the land is in Middlesex County though some parcels lie in New Haven County...

.
6 Dinosaur Trackway Rocky Hill
Rocky Hill, Connecticut
Rocky Hill is a town in Hartford County, Connecticut, United States. The population was 17,966 at the 2000 census. Rocky Hill was part of Wethersfield, the neighboring town to the north, until it was independently incorporated in 1849....

 41.651944°N 72.656944°W
Hartford
Hartford County, Connecticut
Hartford County is a county located in the north central part of the US state of Connecticut. The 2010 Census records show that the county population is at 894,014 making it the second most populated county in Connecticut....

One of the largest dinosaur track sites in North America, with a fine display of early Jurassic
Jurassic
The Jurassic is a geologic period and system that extends from about Mya to  Mya, that is, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic era, also known as the age of reptiles. The start of the period is marked by...

 fossil tracks in sandstone from about 200 million years ago.
7 McLean Game Refuge Natural Areas Granby
Granby, Connecticut
Granby is a town in Hartford County, Connecticut, United States. The population was 10,347 at the 2000 census. The town center was defined as a census-designated place known as Salmon Brook in the 2000 census....

 41.920545°N 72.788544°W
Hartford
Hartford County, Connecticut
Hartford County is a county located in the north central part of the US state of Connecticut. The 2010 Census records show that the county population is at 894,014 making it the second most populated county in Connecticut....

4400 acres (1,780.6 ha) forest in multiple tracts has a very diverse group of species as well as evidence of glacial activity.
8 Pachaug-Great Meadow Swamp Voluntown
Voluntown, Connecticut
Voluntown is a town in New London County, Connecticut, United States. The population was 2,528 at the 2000 census. From 1726 to 1881 Voluntown had been part of Windham County.-Geography:...

 
41.599167°N 71.878056°W
New London
New London County, Connecticut
New London County is a county located in the southeastern corner of the U.S. state of Connecticut. As of 2010 the population was 274,055. The total area of the county is , including inland and coastal waters....

Known for the Atlantic white cedar swamp inside the Pachaug State Forest
Pachaug State Forest
Pachaug State Forest is the largest forest in the Connecticut state forest system, encompassing over 27,000 acres of land. It is located on the Rhode Island border in New London County, and parcels of the forest lie in the towns of Voluntown, Griswold, Plainfield, Sterling, North Stonington, and...

. Includes sections of the Pachaug River
Pachaug River
The Pachaug River is a river arising from the Pachaug State Forest at the Connecticut - Rhode Island border and draining into the Quinebaug River....

and the Great Meadow Brook.

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